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Park Tool Workshop Spoke Tension Meter


The TM-1 Spoke Tension Meter is a vital tool for optimal wheel tension, used for wheel building, truing, and diagnostics. It accurately estimates spoke tension, translates readings into kilograms-force, and handles a wide variety of spoke materials and sizes. Fully rebuildable and recalibratable, it promises enduring reliability.

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EAN: 763477007865 SKU: WESPT101056 Categories: ,
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Product Description

The TM-1 Spoke Tension Meter is a crucial tool for achieving optimal wheel tension, a key factor for stronger and longer-lasting wheels. It’s an indispensable addition to the workbench of those building or truing wheels, troubleshooting wheel issues, or assembling new bikes.

The TM-1 offers an estimation of the relative tension across a wheel’s spokes, pinpointing areas of high or low tension. The included printed table or the Park Tool Wheel Tension App can convert these readings into kilograms-force, helping you calculate the overall tension of a wheel and ensure it’s properly balanced. The app also provides interactive tools for visualizing and analyzing data based on the TM-1’s readings.

Capable of delivering precise kilograms-force readings for virtually any bicycle spoke, the TM-1 is versatile across materials, diameters, and shapes. It includes a spoke gauge for quickly identifying six of the most common round spoke diameters (additional tools may be necessary for bladed spokes). Manufactured in the USA, the TM-1 is fully rebuildable and recalibratable, promising a lifetime of dependable use.

Tech Specs

Accurately measures the following spoke materials:

  • Steel (round and bladed)
  • Aluminum (round and bladed)*
  • Titanium (round and bladed)*
  • Spinergy® PBO
  • Mavic® R2R carbon fiber

*NOTE: conversion data only available for select sizes of aluminum and titanium spokes.



Park Tool

In 1956, Hazel Park Radio and Bicycle Shop in St. Paul, Minnesota, primarily offered bike repairs using basic tools. Owners Howard Hawkins and Art Engstrom introduced a bicycle “repair stand” in 1963, which allowed easy access to bike parts. This stand gained popularity and led to the creation of more specialized tools as bikes became more complex.

By 1981, Howard and Art had sold their bike business to focus on Park Tool. The company expanded, offering over 500 products in 70 countries, and operates from a 100,000 square foot facility. Park Tool is now the preferred brand in the biking industry, not only for tools but also for repair tutorials and educational content.

Despite the evolving complexity of bikes, Park Tool’s mission remains unchanged: to create high-quality tools for both professional and amateur bike mechanics. The company attributes its success to its commitment to this mission, dedicated employees, and loyal customers. Park Tool is prepared to meet the challenges of bike maintenance in the future, just as it has for the past 60 years.